Firearm



P. MARTINO.

FIREARM.

APPLICATION FILED JAN. 17, 1919.

1,396,969. Patented Nov. 15, 1921.

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FIREARM.

APPLICATION FILED JAN. 1?, I919.

' 1,396,969. Patented Nov. 15, 1921'.

3 SHEETS-SHEET 2.

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FIREARM.

APPLICATION FILED JAN. 11, 1919.

ed Nov. 15, 1921.

3 SHEETS-SHEET 3- 1 IIIIIJI 4111".

avwewboz Peiew Marizn o 6M wot/"e1 UNITED PETER MARTIN 0, OF PROVIDENCE, RHODE ISLAND.

FIREARM.

Application filed January 17, 1919.

To all whom it may concern: Be it known that 1, PETER MARTINO, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented new and useful Improvements in Firearms, of which the following is a specification.

This invention relates to improvements in firearms, especially rifles for use in warfare, one object of the invention being to provide an improved firearm of this class embodying a pair of barrels of. different caliber and also embodying a common revoluble cylinder having chambers for cartridges of difierent caliberfor the respective barrels.

Another object of the invention is to effect improvements in the construction of the firin mechanism.

TVith the above and other objects in view, the invention consists in the construction, combination and arrangement of devices hereinafter described and claimed.

In the accompanying drawings 7 Figure 1 is an elevation of my improved gun, assembled.

Fig. 2 is a similar View of the. same, disassembled.

.Fig. 3 is a detail longitudinal sectional view showing the lock mechanism and associated parts, and showing both of the hammers in uncooked position.

vFig. 4 is a similar view showing one of .the hammers cooked in full lines and released indotted lines and showing the other barrel 4. The lock frame 5 has forwardly extending upper and lower arms 6, 7, said arm 7 having a transverse opening 8 and the breech piece 2 being provided with lugs 9 for the reception of the front end of the arm 7 Specification of Letters Patent.

Patented Nov. 15, 1921.

Serial No. 271,721.

therebetween, said lugs being also provided with openings to receive a pin which also passes through the opening 8 so that the stock and'the breech piece are detachably connected together. I also provide locking devices 10 to secure the upper side of the breech piece to the upper side of the stock. A pivot pin 11 projects forwardly from the stock and a revoluble cylinder 12 is removably and pivotally mounted on the pivot pin. Said cylinder has an outer series of cartridge chambers 13 for cartridges of the same caliber as the barrel 3 and an inner series of chambers 14 for cartrid es of smaller caliber to fit the barrel 4. Tlence, the cylinder is common to both barrels and may be used for firing from either of the barrels and for long or short ranges according to the caliber of the barrels and as will be understood. Around its center and at the rear side the cylinder is provided with the usual ratchet teeth 15 which aline radially with the chambers. The cylinder is also provided with the usual peripheral. stop notches 16 which are engaged in succession by a spring dog 17- to prevent casual turning of the cylinder and to hold the same with two of its chambers in line with the barrels.

I also provide a'hammer 18 for firing the large caliber cartridges and a hammer 19 for firing the small caliber cartridges, said hammers having a common pivot 20 and being arranged side by side and being each provided with a downwardly extending arm.

.The arm of the hammer 18 is provided at the lower end with a rearwardly extending downwardly curved trip finger 21 and. also with a downwardly directed cocking finger 23. The arm 24 of the hammer 19 is also provided at its lower end with a trip finger 25 and a cooking finger 26. Each hammer also has a rearwardly extending arm, that of the hammer 18 being indicated at 27 and that of the hammer 19 being indicated at 28. A spring 29 coacts with the arm 27 to impart firing stroke to the hammer 18, a spring 30 coacting with the arm 28 to impart firing stroke to the hammer 19.

Triggers 31, 32 are provided for the respective hammers, each trigger having an upwardly extending arm. A bolt 33 is pivotally connected as at 34 to the upper end of the arm 35 of the trigger 31. A

, spring 36 normally draws the bolt 33 rearwardly and a spring 37 bears under the front portion of said bolt and yieldably maintains the same in operative relation to the downwardly extending arm of the hammer 18. A shoulder 38 is formed at the front end of the bolt 33 and a finger 39 projects forwardly and is curved upwardly from the lower front portion of the said bolt, said finger, when the bolt is moved forwardly, serving to engage one of the ratchet teeth of the cylinder and thereby to impart a partial rotation to the cylinder to arrange two of its cartridge chambers in line with the barrels.

Normally, the bolt 33 is at the rearward limit of its movement, held by the spring 36, and with its finger 39 below the finger 23 of the hammer 18, the finger 23 being in front of the shoulder 38 and the trip finger 22 of said hammer being arranged slightly above the front portion of the bolt and said trigger being in normal position. When the trigger is pulled, the bolt 33 is moved forwardly thereby, against the tension of the spring 36, and as the finger 39 partly turns the cylinder, the shoulder 38 also engages the cooking finger 23 so that the hammer 18 is cooked and thereupon the trip finger 22 of the hammer bears downwardly on the front end of the bolt 33 and disengages the shoulder 38 from the cooking finger 23 so that the hammer is entirely released by thebolt and hence is caused by its spring 29 to strike and fire a cartridge.

The hammer 19 is similarly operated by a bolt 40 which is identical in construction with the bolt 33, its spring being indicated at 41, its shoulder at 42 and its finger at 43. The trigger guard which is common to both of the triggers is indicated at 44.

A strap 45 is provided to enable the gun to be slung and easily carried over the shoulder, the ends of the strap being connected to the stock and to the detachable breech piece by suitable connecting elements 46.

The bayonet 47 has a socket piece 48 which embodies a band 49 which passes around the lower barrel 4 and is slidable between the lower barrel and the upper barrel 3 so that the bayonet can be either withdrawn or projected, as may be desired, a suitable fastening device 50 being provided to secure the socket piece with the bayonet in either of such positions. Attached to the socket piece of the bayonet is a tube 51 for holding a signaling rocket 52.

In practice, the cylinder 12 is of considerable, diameter provided with a number of cartridge chambers so that a number of cartridges can be fired from the piece either of large or small caliber as may be desired. The cylinder may be readily removed and another substituted in its stead, and by providing several cylinders for use in connection with my gun, the same may be used for firing a large number of cartridges in rapid succession.

While I have herein shown and described a preferred embodiment ofmy invention, I would have it understood that changes may be made in the form, proportion and construction of the several parts without departing from the s irit of the invention and within the scope of the appended claims.

Having thus described my invention, I claim: V

1. In a firearm, a hammer including a pivoted arm, a trigger, a bolt connected with the trigger for horizontal sliding movement, a coiled spring arranged in axial alinement with said bolt, said spring having one end fixed and its opposite end connected with the bolt for normally holding the latter retracted, the said arm being pivoted between its ends and arranged substantially at a right angle to said bolt, the lower end of said arm being disposed in the path of movement of said bolt, whereby the hammer is cooked when the bolt is moved in a forward direction, means for moving the bolt out of engagement from said arm upon further movement of the bolt in a forward direction, and means for imparting the firing stroke'to the hammer immediately upon release of the arm from said bolt.

2. In a firearm, a hammer including an arm pivoted between its ends, a trigger, a normally retracted bolt arranged at a right angle to said arm and connected with the trigger for sliding movement, a downwardly directing cocking finger projecting fromthe lower end of the arm and disposed in the path of said bolt, whereby said hammer is cocked upon movement of thebolt in a forward direction, a second rearwardly and downwardly extending finger projecting fromone edge of the arm and reposing upon the bolt, whereby the arm is moved out of engagement from said bolt upon further movement of the latter in a forward direction, a third finger projecting from the same edge of same arm at a point adjacent its pivot, and a leaf spring arranged above the bolt and engaging the latter mentioned finger, whereby the firing stroke is imparted to the hammer subsequent to the release of the arm from the bolt,

3. In a firearm, the combination with a 1 plurality ofbarrels and a revoluble cylin der common to both barrels and having a. cartridge chamber arranged to aline with each of the cylinders, ratchet teeth carried by said cylinder, of a pivoted hammer, a"

trigger, a normally retracted bolt connected to the trigger and arranged to cook the hammer upon movement in a forward direction, means for releasing the hammer from the bolt upon continued movement of the latter in a forward direction, a finger pivoted to the bolt at a point in its length, said finger being extended forwardly and curved up- Wardly to engage said ratchet teeth of the cylinder, whereby the latter is partly rotated justprior to the release of the hammer from the bolt, and means for impartingthe firing stroke to the hammer subsequent to its release.

In testimony whereof I afllx my signature.

PETER MARTINO. 

